Auxiliary device for dismounting paying-off tackle

Abstract

The auxiliary device comprises a hanging bracket assembly, an unmanned aerial vehicle, an electric hoist, a hook assembly and a two-connecting-rod mechanism, and the hanging bracket assembly is used for being hung on an electric tower cross arm; the unmanned aerial vehicle is used for lifting the lifting frame assembly and hanging the lifting frame assembly on an electric tower cross arm; a pair of electric hoists is arranged, and the electric hoists walk on a cross beam sliding rail at the lower end of the hanging bracket assembly in a matched mode through a walking mechanism; the hook assembly is used for pulling a cable and is in butt joint with the lower end of a lifting rope of the corresponding electric hoist. The two ends of the two-connecting-rod mechanism are in butt joint with the corresponding hook assemblies. Through cooperation of the unmanned aerial vehicle, the hanging bracket assembly, the electric hoist, the hook assembly and the two-connecting-rod mechanism, hoisting work of a cable below an electric tower cross arm can be automatically completed, the cable is made to be separated from a paying-off tackle, follow-up dismantling work of the paying-off tackle is facilitated, direct manual participation is not needed in the whole hoisting work, and the hoisting efficiency is improved. And the danger degree of the dismounting operation of the whole paying-off tackle can be reduced to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of power-assisted disassembly equipment, in particular to a wire-laying pulley disassembly auxiliary device. Background Art

[0002] The wire-laying pulleys are mainly divided into large-diameter wire-laying pulleys, dual-purpose wire-laying pulleys, ground wire-laying pulleys and lifting pulleys. They are mainly used to protect the cable conductors when laying them, and protect the cables from friction when the cable is extended and changes direction. The wire-laying pulley is usually fixed at the lower end of the insulator string, and supports the cable through its own guide wheel, so as to facilitate the cable laying. After completing the cross-line laying between the cable and multiple iron towers, the wire-laying pulley on the straight tower needs to be removed. The current operation method is: arrange two staff members to climb to the top of the tower, and deliver two hand hoists to the staff members through a transfer rope. Then, fix one end of the hand hoist on the iron tower, and one of the operators climbs down from the tower along the insulator string, sits on the cable, and then installs the other end of the hand hoist on the cable, and then pulls the hand hoist to let the metal chains of the two hand hoists pull up the cable at this position, so that the guide wheel of the wire-laying pulley and the insulator string connected to the wire-laying pulley no longer bear the gravity of the cable. After that, the staff can remove the wire-laying pulley. The entire cable lifting process relies entirely on human participation, and the lifting operation process is very dangerous. Therefore, it is urgent to design a wire-laying pulley removal auxiliary device for automatically lifting the cable so that it can be separated from the wire-laying pulley, thereby avoiding direct participation of staff and improving the safety of lifting operations. Summary of the invention

[0003] The object of the present invention is to provide a wire-laying pulley dismantling auxiliary device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The auxiliary device for dismantling the wire-laying pulley comprises a hanger assembly, a drone, an electric hoist, a hook assembly and a two-link mechanism. The hanger assembly is used to be hung on the cross arm of the electric tower; the drone is used to lift the hanger assembly and hang the hanger assembly on the cross arm of the electric tower; a pair of electric hoists are provided, and the electric hoists travel on the crossbeam slide rail at the lower end of the hanger assembly through a traveling mechanism; the hook assembly is used to pull the cable to separate it from the guide wheel of the wire-laying pulley, and the hook assembly is docked at the lower end of the lifting rope of the corresponding electric hoist; the two-link mechanism is used to balance the hook assemblies on both sides, and the two ends of the two-link mechanism are docked with the corresponding hook assemblies.

[0006] As a further solution of the present invention, the drone is fixedly mounted with a transverse boom via a pair of connecting frames.

[0007] As a further solution of the present invention, the hanger assembly includes a hanger beam, on which an upper hook for hooking on a transverse hanger rod is fixedly installed, and cross-arm docking hooks for hooking on a cross-arm of an electric tower are also fixedly installed at both ends of the hanger beam, and the lower end of the hanger beam is fixedly connected to a cross-beam slide rail via a pair of connecting plates.

[0008] As a further solution of the present invention, the walking mechanism includes a walking machine base, which is docked and fixed with the electric hoist, and a pair of walking wheels for cooperating with the crossbeam slide rail are installed on the walking machine base. A walking drive motor is fixedly installed on the side end of the walking machine base, and the walking drive motor is drivingly connected to the shaft end of the walking wheel.

[0009] As a further solution of the present invention, the hook assembly includes a connecting ear plate for docking with the lower end of the lifting rope, and the lower end of the connecting ear plate is installed with a transverse swivel seat through a pin shaft for rotation, and the facing ends of the two transverse swivel seats are fixedly installed with counterweight parts, and the separated ends of the transverse swivel seats are extended with hook parts for hooking the cable, and the opening between the hook part and the transverse swivel seat faces inward.

[0010] As a further solution of the present invention, a limiting column is further provided on one side of the lateral rotating seat close to the counterweight portion, and a horizontal limiting portion and an oblique limiting portion for cooperating with the limiting column are provided on the inner side of the connecting ear plate. The limiting column is limited by the horizontal limiting portion and the oblique limiting portion, so that the hook portion can be docked in two states.

[0011] As a further solution of the present invention, the two-link mechanism includes a pair of link arms, which are rotatably connected via a middle pin shaft, and the outer ends of the link arms are rotatably mounted on corresponding pin shafts.

[0012] As a further solution of the present invention, a horizontal limit bar is extended from the inner end of one of the connecting rod arms for limiting the upward rotation of the other connecting rod arm, and a proximity detection switch for cooperating with the horizontal limit bar is also installed on the inner end of the other connecting rod arm. The proximity detection switch can be connected to the signal input end of the controller, and the signal output end of the controller is electrically connected to the travel drive motor for cooperating in controlling the travel drive motor to stop.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention uses a drone to hang the hanger assembly on the cross arm of the power tower. Under the drive of the walking mechanism, the two hook assemblies can automatically hook on the corresponding cables. The electric hoist can automatically pull up the cables to separate them from the guide wheel of the cable-laying pulley. The efficiency of cable hoisting is greatly improved, and the entire hoisting process does not require direct participation of staff, thereby improving the safety of the hoisting operation.

[0015] 2. A two-link mechanism is arranged between the connecting ear plates of the two hook components. The two-link mechanism can not only balance and control the distance between the hook components, but also detect the matching position between the hook part and the cable, so as to facilitate the control of the lateral walking position of the electric hoist. The two link arms are connected by a middle pin shaft, which can be used to cooperate with the hook part to hook the cable;

[0016] 3. The electric hoist moves on the beam slide rail through the walking mechanism, thereby adjusting the position of the hook assembly below so that the two hook assemblies can hook the corresponding cables at the same time;

[0017] 4. The hook assembly in the present invention has a reasonable structural design and is easy to operate. When the hook part is subjected to the pulling force applied by the suspension rope, the counterweight part rotates upward around the pin axis, so that the transverse swivel seat is in an inclined state. At this time, the posture of the hook part can reliably limit the cable, which can effectively prevent the cable from being unhooked during the pulling process; when the hook part is not subjected to force, under the action of the counterweight part's own gravity, the counterweight part rotates downward around the pin axis, so that the transverse swivel seat is in a horizontal state. With the cooperation of the walking mechanism, it is convenient for the hook part to hook onto or detach from the cable.

[0018] 5. In summary, the present invention can automatically complete the lifting of the cable under the cross arm of the tower through the cooperation of the drone, the hanger assembly, the electric hoist, the hook assembly and the two-link mechanism, so that it can be separated from the wire-laying pulley, thereby facilitating the subsequent dismantling of the wire-laying pulley. The entire lifting work does not require direct human participation, which can reduce the risk of the entire wire-laying pulley dismantling operation to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the auxiliary device for dismantling the wire-laying pulley;

[0020] Figure 2 It is a three-dimensional structural diagram of the assembly of the electric hoist and the hook assembly in the auxiliary device for dismantling the wire-laying pulley;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the drone and the transverse boom in the auxiliary device for dismantling the wire-laying pulley;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of a hook assembly in a wire-laying pulley removal auxiliary device;

[0023] Figure 5 It is a structural schematic diagram of the two-link mechanism in the auxiliary device for dismantling the wire-laying pulley;

[0024] Figure 6 Schematic diagram of the three-dimensional structure when removing the auxiliary device for the cable-laying pulley to lift a single cable.

[0025] In the figure: 100-tower cross arm, 1-drone, 11-connecting frame, 12-lateral suspension rod, 2-suspender cross beam, 21-hook, 22-cross arm docking hook, 23-cross beam slide rail, 3-cable, 4-electric hoist, 41-lifting rope, 5-travel mechanism, 51-travel machine seat, 52-travel drive motor, 53-travel wheel, 6-two-link mechanism, 61-link arm, 62-horizontal limit strip, 63-proximity detection switch, 64-pin shaft, 7-hook assembly, 71-connecting ear plate, 711-horizontal limit part, 712-oblique limit part, 72-lateral swivel seat, 721-limiting column, 73-hook part, 74-counterweight part, 75-pin shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 5 The present invention provides a technical solution: a wire-laying pulley dismantling auxiliary device, comprising a hanger assembly, a drone, an electric hoist, a hook assembly and a two-link mechanism, wherein the hanger assembly is used to be hung on the cross arm 100 of the power tower; the drone 1 is used to lift the hanger assembly and hang the hanger assembly on the cross arm 100 of the power tower; a pair of electric hoists 4 are provided, and the electric hoist 4 travels on the crossbeam slide rail 23 at the lower end of the hanger assembly through a walking mechanism 5; the hook assembly 7 is used to pull the cable 3 to make it separate from the guide wheel of the wire-laying pulley, and the hook assembly 7 is docked at the lower end of the lifting rope 41 of the corresponding electric hoist 4; the two-link mechanism 6 is used to balance the hook assemblies 7 on both sides, and the two ends of the two-link mechanism 6 are docked with the corresponding hook assemblies 7.

[0028] The working principle of the present invention is: first, the hanger assembly is pulled by the drone 1, so that the hanger assembly and the electric hoist 4, the hook assembly 7 and the two-link mechanism 6 assembled thereunder are hoisted up, and driven by the drone 1, the hanger assembly is hung on the cross arm 100 of the power tower, and then the drone 1 is disconnected from the hanger assembly, and the electric hoist 4 moves in the same direction on the crossbeam slide rail 23 through the walking mechanism 5, so that the hook assembly 7 below is close to the cable 3 to be pulled, and after the position of the hook assembly 7 is adjusted, the electric hoist 4 unwinds the hoist rope 41 until the two-link mechanism 6 is attached to the cable 3, and then, a pair of electric hoists 4 move toward each other on the crossbeam slide rail 23 through the walking mechanism 5, so that the hook components 7 on both sides can hook the corresponding cables 3. At the same time, the two-link mechanism 6 gradually deforms from the extended state to the folded state, and when the hook components 7 on both sides are completely hooked to the cable 3, the electric hoist 4 starts to reel in the lifting rope 41. As the lifting rope 41 is reeled in, the hook component 7 can pull the cable 3 upward until the cable 3 is completely separated from the guide wheel of the wire-laying pulley, thereby assisting the staff to remove the wire-laying pulley from the lower end of the insulator string.

[0029] After the wire-laying pulley is removed, the staff will completely fix the cable 3 at the lower end of the insulator string, and then the electric hoist 4 will start to unwind the lifting rope 41 until the two-link mechanism 6 is again attached to the cable 3 and the hook assembly 7 is no longer under force. Then, a pair of electric hoists 4 will move apart on the crossbeam slide rail 23 through the walking mechanism 5, so that the hook assembly 7 is completely disengaged from the cable 3. Then, the electric hoist 4 will rewind the lifting rope 41 and retract the hook assembly 7. Then, the drone 1 will be re-docked and hooked with the hanger assembly, and the hanger assembly and the mechanism components below it can be completely hoisted down.

[0030] The present invention can automatically complete the lifting of the cable 3 below the tower crossarm 100 through the cooperation of the drone 1, the hanger assembly, the electric hoist, the hook assembly and the two-link mechanism, so as to separate it from the wire-laying pulley, thereby facilitating the subsequent removal of the wire-laying pulley. The entire lifting work does not require direct human participation, which can reduce the risk of the entire wire-laying pulley removal operation to a certain extent.

[0031] As a specific solution, the UAV 1 is specifically fixedly installed with a transverse boom 12 through a pair of connecting frames 11; the hanger assembly includes a hanger beam 2, on which an upper hook 21 for hooking on the transverse boom 12 is fixedly installed, and both ends of the hanger beam 2 are also fixedly installed with crossarm docking hooks 22 for hooking on the tower crossarm 100. In order to facilitate the crossarm docking hooks 22 to be hung on the tower crossarm 100, the crossarm docking hooks 22 can be specifically in a trumpet shape, and the lower end of the hanger beam 2 is fixedly connected to a beam slide rail 23 through a pair of connecting plates.

[0032] The UAV 1 achieves the lifting of the hanger assembly by hanging and cooperating with the upper hook 21 on the hanger crossbeam 2 through the transverse boom 12. As an optimization solution, in order to facilitate the transverse guide rod 12 to enter the upper hook 21 when driven by the UAV, the cross-sectional thickness of the transverse guide rod 12 gradually decreases from the middle to the upper end; in order to facilitate the transverse guide rod 12 to detach from the upper hook 21 when driven by the UAV, the cross-sectional thickness of the transverse guide rod 12 gradually decreases from the middle to the lower end.

[0033] As a specific solution, the walking mechanism 5 includes a walking machine base 51, which is fixedly docked with the electric hoist 4, and a pair of walking wheels 53 for cooperating with the beam slide rail 23 are installed on the walking machine base 51. A walking drive motor 52 is fixedly installed on the side end of the walking machine base 51, and the walking drive motor 52 is drivingly connected to the shaft end of the walking wheel 53. The working principle of the walking mechanism 5 is: the walking drive motor 52 drives the walking wheel 53 to roll on the beam slide rail 23, thereby driving the electric hoist 4 below to walk along the beam slide rail 23.

[0034] As a specific solution, the hook assembly 7 includes a connecting ear plate 71 for docking with the lower end of the suspension rope 41, and a transverse swivel seat 72 is installed at the lower end of the connecting ear plate 71 through a pin shaft 75 for rotation and cooperation, and counterweight parts 74 are fixedly installed at the opposite ends of the two transverse swivel seats 72, and hook parts 73 for hooking the cable 3 are extended from the separated ends of the transverse swivel seats 72, and the opening between the hook part 73 and the transverse swivel seat 72 faces inward; wherein, a limiting column 721 is also provided on the side of the transverse swivel seat 72 close to the counterweight part 74, and a horizontal limiting part 711 and an oblique limiting part 712 for cooperating with the limiting column 721 are provided on the inner side of the connecting ear plate 71.

[0035] When the hook portion 73 is not subjected to force, under the action of its own gravity, the counterweight portion 74 rotates downward around the pin shaft 75, and after the limiting column 721 contacts the horizontal limiting portion 711, the transverse swivel seat 72 is in a horizontal state, which makes it easy for the hook portion 73 to hook onto the cable 3 during the transverse movement. When the hook portion 73 is subjected to the pulling force applied by the suspension rope 41, the counterweight portion 74 rotates upward around the pin shaft 75, and after the limiting column 721 contacts the oblique limiting portion 712, the transverse swivel seat 72 is in an inclined state. At this time, the posture of the hook portion 73 can reliably limit the cable 3, and can effectively prevent the cable 3 from being unhooked during the pulling process.

[0036] As a further specific solution, the two-link mechanism 6 includes a pair of link arms 61, which are connected by a middle pin 64, and the outer ends of the link arms 61 are rotatably mounted on the corresponding pins 75. The inner end of one of the link arms 61 is extended with a horizontal limit bar 62 for limiting the upward rotation of the other link arm 61. The setting of the horizontal limit bar 62 can prevent the two link arms 61 from continuing to rotate upward around the pin 75, so that the two link arms 61 can remain in a straight state. The setting of the horizontal limit bar 62 only allows the two link arms 61 to rotate downward around the pin 75. The inner end of the other link arm 61 is also installed with a proximity detection switch 63 for cooperating with the horizontal limit bar 62. The proximity detection switch 63 can be connected to the signal input end of the controller, and the signal output end of the controller is electrically connected to the travel drive motor 52, which is used to cooperate with the control of the travel drive motor 52 to stop.

[0037] When the two connecting rod arms 61 are fully extended, the proximity detection switch 63 can detect the approach signal of the horizontal limit bar 62. According to the approach signal, the travel drive motor 52 is controlled to stop, so as to prevent the walking mechanism 5 from driving the electric hoist 4 to move away from each other excessively; when the two connecting rod arms 61 are folded to the set state, the proximity detection switch 63 can not detect the approach signal of the horizontal limit bar 62 at all, indicating that the hook part 73 has been hooked on the cable 3. According to the non-approach signal, the travel drive motor 52 is controlled to stop, thereby controlling the walking mechanism 5 to stop driving the electric hoist 4 to move toward each other. Obviously, in this embodiment, the length dimension of a pair of connecting rod arms 61 of the two-link mechanism 6 after extension is adapted to the spacing dimension between the two cables 3 at present. For two cables 3 with different spacing dimensions, the two-link mechanism 6 with the corresponding adapted length dimension can be specifically used to hoist the cables 3. This embodiment illustrates the process of hoisting two cables 3 at the same time by the auxiliary device for dismantling the wire laying pulley of the present invention.

[0038] As another embodiment, the auxiliary device for removing the cable-laying block of the present invention can also be used for hoisting a single cable 3, such as Figure 6 As shown in the figure, the specific lifting process is as follows:

[0039] First, the drone 1 pulls the hanger assembly, thereby lifting the hanger assembly and the electric hoist 4, hook assembly 7 and two-link mechanism 6 assembled below it. Driven by the drone 1, the hanger assembly is hung on the tower cross arm 100. Then, the drone 1 is disconnected from the hanger assembly, and the electric hoist 4 moves in the same direction on the crossbeam slide rail 23 through the walking mechanism 5, so that the hook assembly 7 below is close to the cable 3 to be pulled. After the position of the hook assembly 7 is adjusted, the electric hoist 4 unwinds the hoist rope 41. Until the two-link mechanism 6 is against the cable 3, then, a pair of electric hoists 4 move to the left on the crossbeam slide rail 23 at the same time through the walking mechanism 5, so that the hook assembly 7 on the right can hook the cable 3, and when the hook assembly 7 is completely hooked to the cable 3, the electric hoists 4 on both sides begin to reel in the lifting rope 41 at the same time. As the lifting rope 41 is reeled in, the hook assembly 7 can pull the cable 3 upward until the cable 3 is completely separated from the guide wheel of the wire-laying pulley, thereby assisting the staff to remove the wire-laying pulley from the lower end of the insulator string.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wire laying pulley dismantling auxiliary device, characterized in that: include: A hanger assembly, used for hanging on the cross arm (100) of the power tower; A drone (1) is used to lift a hanger assembly and hang the hanger assembly on a cross arm (100) of an electric tower; A pair of electric hoists (4) are provided, and the electric hoists (4) travel on the crossbeam slide rail (23) at the lower end of the hanger assembly in cooperation with the traveling mechanism (5); A hook assembly (7) is used to pull the cable (3) to make it separate from the guide wheel of the cable-releasing pulley, and the hook assembly (7) is docked at the lower end of the suspension rope (41) of the corresponding electric hoist (4); The two-link mechanism (6) is used to balance the hook assemblies (7) on both sides, and the two ends of the two-link mechanism (6) are butt-jointed with the corresponding hook assemblies (7).

2. The wire-laying pulley dismantling auxiliary device according to claim 1, characterized in that: The drone (1) is fixedly mounted with a transverse suspension rod (12) via a pair of connecting frames (11).

3. The wire-laying pulley removal auxiliary device according to claim 2, characterized in that: The hanger assembly comprises a hanger crossbeam (2), an upper hook (21) for hooking on a transverse hanger rod (12) is fixedly mounted on the hanger crossbeam (2), crossbeam docking hooks (22) for hooking on a crossbeam (100) of an electric tower are also fixedly mounted at both ends of the hanger crossbeam (2), and a crossbeam slide rail (23) is fixedly connected to the lower end of the hanger crossbeam (2) via a pair of connecting plates.

4. The wire-laying pulley dismantling auxiliary device according to claim 1, characterized in that: The walking mechanism (5) comprises a walking machine base (51), the walking machine base (51) is fixedly docked with the electric hoist (4), a pair of walking wheels (53) for cooperating with the crossbeam slide rail (23) are installed on the walking machine base (51), a walking drive motor (52) is fixedly installed on the side end of the walking machine base (51), and the walking drive motor (52) is drivingly connected to the shaft end of the walking wheel (53).

5. The wire-laying pulley dismantling auxiliary device according to claim 1, characterized in that: The hook assembly (7) comprises a connecting ear plate (71) for docking with the lower end of the suspension rope (41); the lower end of the connecting ear plate (71) is rotatably mounted with a transverse rotating seat (72) via a pin shaft (75); counterweights (74) are fixedly mounted on the facing ends of the two transverse rotating seats (72); a hook portion (73) for hooking the cable (3) is extended from the separated end of the transverse rotating seat (72); and an opening between the hook portion (73) and the transverse rotating seat (72) faces inward.

6. The wire-laying pulley removal auxiliary device according to claim 5, characterized in that: A limiting column (721) is also provided on one side of the transverse rotating seat (72) close to the counterweight portion (74), and a horizontal limiting portion (711) and an oblique limiting portion (712) for cooperating with the limiting column (721) are provided on the inner side of the connecting ear plate (71).

7. The wire-laying pulley removal auxiliary device according to claim 5, characterized in that: The two-link mechanism (6) comprises a pair of link arms (61), the link arms (61) are rotatably connected via a middle pin shaft (64), and the outer ends of the link arms (61) are rotatably mounted on corresponding pin shafts (75).

8. The wire-laying pulley removal auxiliary device according to claim 7, characterized in that: A horizontal limit bar (62) for limiting the upward rotation of the other link arm (61) extends from the inner side end of one link arm (61), and a proximity detection switch (63) for cooperating with the horizontal limit bar (62) is also installed on the inner side end of the other link arm (61).

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